Window-screen.



UNITED IsTATEs PATENT emon.

or' ARLEs M. CONKLIN, or CINCINNATI, 01110, ASSIGNOR, BY MESNE' ASSIGNMENTS, TO THE-LUNKEN s'rEnL WINDOW 00., A CORPORATION OF OHIO.

WINDOW-sarcasm seams.

Specification of Iietters Patent.

.' Batented April as, 1908.

Application filed January 25,1907. Serial 1a. scans ,To all whom itmay concern:

citizen of the United States residing at Cinfhinnati, Ohio, have invented certain new and useful Improvements in Window-Screens, of

the following is a spec fication. Anya application for Letters Patent of the United States, of even date herewith, I disclose, a Window screen or fabric holding 1 frame in which the screen cloth is stretche after the frame is made up and the screen I .cloth clamped therein by changing the formation of the clamping members to secure a relative separating movement of the oppo- ['5' site sides of the frame 'to thereby produce a {tightening effect on the screen cloth. This change in the formation of the. screen frame consists, in the invention disclosed in said application, of formin a corrugation in the metallic frame mem ers intermediate of their width so that the mar ins at which the screen cloth is clamped wil be drawn outwardly in respect to the center of the frame and thus stretch the screen cloth. In my present im' rovement I rovidethe corrugation in the c amping mem ers before they are assembled and united together and the screen cloth being introduced between them, and held by its edge between the mem- 3o bers, they are then closed one upon the other and the screen cloth being forced into the concavity'of the corru ation of one member by thej convex side of t e corrugation of the 1 other member the screen fcloth will be drawn Blif'lipon and stretched to the desired extent, "and the parts will-then be locked in this relation' 1 Another feature of my present invention rename. the construction of the frame of 49, sectional members the sections of each mem-L her hav ng short and long legs and breaking v 1 joints with the sections of'the other member,

.the frame being completed without fastening devices or any means other than the engage ment of the overlapping sections and no miter joints being present'in the frame and no 'oints of any description at the corners.

; heinvention is illustrated in the accomalgying drawings'in which,

lgure '1 is' a front view of a screen em- :1 'bodying my invention. Fig. 2 is a view ofcl ent the sections of one framememb'er.

H gx-3 is a similar view of one of the section s .ofthe'otherframe member. Fig. 4' is a per- I 155 ispective'view of a portion of one of the frame members. Fig. 5 is a erspective view of'a Beit.knownthat 1, CHAR ES M. CONKLIN,

art of one of the ot erJ frame members.

ig. 6 .is ,a cross sectional view of the frame members with the screen cloth in place, held by its edge and ready to be stretched and 0. clam'edsimply by the act of clo'sinigr the mem ers. Fig. 7 is a view of the ame members'in closed and united relation.

In these drawings 8 represents one frame member having, previous to its assembling 5 with 'the screen cloth and the other frame member, .a corrugation or groove 9. This groove is formed substantially centrally of the width of the member leaving the plain flan es 10, 11, on opposite sides, respective y, of said corrugation.

The cooperating frame member comprises the part 12 also centrally corrugated to fit into the corrugation of the other member and having upon one side of its corrugation-a plain flan e 1-3 while up'on the other side the flange me an angular extension 14, which extension, in the articular form of my invention illustrated herein, forms an acute an 1e with the main art of the flange.

n assembling and uniting the parts the screen cloth is laid across the member 8ex tending over the groove or concave side of the corrugation therein, and its edge is bent around the outer edge of the flange 11 and is 35 laid alon the opposite face of said flange. Themem er 12 is then placed in osition, as.

shownin Fig. 6, with the angle 0 its flan es ulpon the edge of the flange 11 and then y c osing the members to ether as shown in Fig. 7 the screen cloth wi i be drawn over the I face of the flange 10 down into the channel of the corrugation 9, and in this action it will be first stretched andthen clam ed in position. During this action it will be noticed that it will be held firmly at its edge by pass-. ing around the ed e of the flange 11 and by I the engagement of the angular flange of the other member which bears u on the cloth at this point. The final close relation of the partsis shown in Fig. 7 in which it' will be f'seen that the angular flange 14 is folded or pressed down close to the ace of the flange 11 With the screen cloth interposed.

By reference to Figs. 1, 2 and?) it will be seen that the screen frame members 8 and 12 are each formed in sections. These sections, I in the present embodiment of'cny invention I show of right angular form, each having a long iand a short leg. In assembling the secjoints.

tions of the members the joints of one frame member are arranged so as not to register with the joints of the other frame member. In other words they are arranged to break The sections 8. of the frame 8 extend be tween the points 8 while the sections of the member 12 extend between the points l2 Each section therefore extends with its longer leg along one side of the frame to the corner thereof and with its short leg extend ing from said corner part way along the ad.- jacent side of the frame overlapping the adjacent section of the other frame member. The arts of the frame may be held together mere y by the grip of the flanges of the member 12 about the flange of the member 8 or suitable fastening devices may be employed.

It will be understood that I do not wish to limit myself to the use of'my invention to' Window screens as it may be applied to any analogous use, where a fabric is to be held in stretched condition.

I claim as my invention 1. An article of the class described comprising frame members adapted to be placed together by moving one pivotally in relation to the other, the said members having means for gripping the fabric first at their outer portions during said pivotal movement, and having means which when the frame members are closed one upon the other stretch the fabric, said frame members being combined with other frame members at the other side of the frame which hold the fabric while being stretched substantially as described.

2. In combination, frame members having means for gripping the fabric first between their outer portions against movement inwardly, the said members having corrugations, one fitting within the other, whereby when the members are closed one upon the other they press the fabric laterally and stretch the same, said frame members being combined with other frame members at the other side of the frame which hold the fabric while being stretched substantially described.

3. In combination in an article of the class described, a frame member having a groove and a second member having a projection to enter said groove, said members having outer interlocking flanges gripping the fabric between said outer flanges and between the projection and groove and said members eing held together by said interlocking flang s, substantially as described.-

4. Incombination in an article of the class described, a frame member having a corrugation with the plain flange on each side thereof and the cooperating member having a corrugation to enter that of the member first mentioned, and having a flange to lie upon the plain flange with an extension 14 to embrace the said. plain flange of the first mentioned member, tween the members and between the interlocked flanges, substantially as described.

5. An article of the class described, comprising two members, each made up of a plurality of sections, each section having an intact portion extending around. the corner. lapping upon and breakingjoints with the sections of the other member, suid sections constituting the entire frame snbsiontially as described.

6. In combinai ion in on article of the class described, the two frame members (:nli com-- )osed of a plurality of sec? ions, on. b. of which has a long and a short leg and lapping upon the reversely posi ioncd siinihirlyconstructed sections of the other frame, said HLiiiUllS breaking joints, extending around rho corne and lapping upon and inmatiug jOllllir. wiib.

the section of the other frame momlnyr, substantially as described.

'7. In combiiuition in an artii-hi of the cluss described, the two frame membem each com posed of a plurality of sectiobs, each of which has a long and. a short leg and lapping upon the Iercrsely positioned simihn'l conslructed sections of the other frame, said sections tending around the corner and. lapping upon and breaking joints with the sections of ibh other frame member, intcrh'wkiiur flanges on said members, sa id frame members being; held together by the grip of their inicrloizlu i flanges, substantially as dos ibcdi 8. In. combination in frame, the two members each composed of"? plurality of sections, each section haying legs integrally connected at the corners and lapping upon the legs of the section of the other member and breaking joints therewith at points away from the corners, substantially (ltSCl'ilJHl. 9. In combination in a frame, illU two members each formed of a plura ity of sec tions extending around the corner; said sections having long and short legs and lapping upon and breaking joints with the so tions of the other member and the StUtlUllH of our member being reversed in position respecting their long and short legs, relative to the sections of the other incmliicr, substantially as described. 7

it. In combination in a frame the two ,members each formed by a plurality of sections having integral portions ontending around the'coruors and overlapping and breaking joints, the sections of one member being clamped at their outer edges with the sections of the othclr member, suhstamiallv as described.

In testimony whereof, I ailii; my signature in presence of two witnesses.

YIIAHLES MI. CUNKLIN.

and the fabric erteiidin g bei 

